/**
 * @license
 * Copyright 2023 Nuraly, Laabidi Aymen
 * SPDX-License-Identifier: BSD-3-Clause
 */
/**
 * Theme utilities and type definitions
 *
 * NOTE: CSS theme files are in the @nuralyui/themes package
 * This file only contains TypeScript utilities and types
 */
export declare const THEME_VARIANTS: {
    readonly 'default-light': "Default Light";
    readonly 'default-dark': "Default Dark";
    readonly 'carbon-light': "Carbon Light";
    readonly 'carbon-dark': "Carbon Dark";
    readonly light: "Default Light";
    readonly dark: "Default Dark";
};
export type ThemeVariant = keyof typeof THEME_VARIANTS;
/**
 * Utility function to apply theme to an element
 * @param element - The element to apply the theme to
 * @param theme - The theme variant to apply
 */
export declare function applyTheme(element: HTMLElement, theme: ThemeVariant): void;
/**
 * Utility function to get current theme from an element or its parents
 * @param element - The element to check for theme
 * @returns The current theme variant or null if not found
 */
export declare function getCurrentTheme(element: HTMLElement): ThemeVariant | null;
/**
 * Utility function to toggle between light and dark variants of the same theme
 * @param element - The element to toggle theme on
 */
export declare function toggleThemeVariant(element: HTMLElement): void;
/**
 * Get the theme system name from a theme variant
 * @param theme - The theme variant
 * @returns The theme system name ('carbon' or 'default')
 */
export declare function getThemeSystem(theme: ThemeVariant | null): 'carbon' | 'default';
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